Node/Parse docx variables

/* npm install --save docxtemplater pizzip command: node docxtemplater2.js input.docx "<json file or text.json>" output.docx */ const fs = require("fs"); const path = require("path"); if (process.argv.length < 5) { console.error('Expected at least three argument!'); process.exit(1); } if (!fs.existsSync(process.argv[2])) { console.error('File does not exist '+process.argv[2]+'!'); process.exit(1); } const PizZip = require("pizzip"); const Docxtemplater = require("docxtemplater"); // Load the docx file as binary content const content = fs.readFileSync( path.resolve(__dirname, process.argv[2]), "binary" ); const zip = new PizZip(content); var json = process.argv[3]; if (fs.existsSync(json)) { json = fs.readFileSync(json); } json = JSON.parse(json); const doc = new Docxtemplater(zip, { paragraphLoop: true, linebreaks: true, nullGetter: function(part) { // console.log(part); return "{"+part.value+"}"; } }); // Render the document (Replace {first_name} by John, {last_name} by Doe, ...) doc.render(json); const buf = doc.getZip().generate({ type: "nodebuffer", // compression: DEFLATE adds a compression step. // For a 50MB output document, expect 500ms additional CPU time compression: "DEFLATE", }); // buf is a nodejs Buffer, you can either write it to a // file or res.send it with express for example. fs.writeFileSync(path.resolve(__dirname, process.argv[4]), buf);